I am in CA, just formed a single member LLC from a sole proprietorship. I have an existing EIN apart my social when I was a sole proprietor. The only name change was having "LLC" at the end of the company name. Do I need to obtain a new EIN? or can I use the existing? I do not have any employees. Do I need to do some type of name change to reflect the "LLC" or if there is no change in the body of the company name does that make a name change not necessary.
Just make sure which ever schedule you use in your 1040 reflects you correct business name.
As a single member LLC you generally do not need a separate EIN. See the attached discussion from the IRS: